Nighthawk AC1900 (C7000v2) Disconnects Frequently

Question

For almost a week now, my modem has been losing its internet connection for several minutes at a time. This loss is simultaneous across all devices, both wired and wireless. Outside of these drops, performance seems to be totally normal.

I've contacted my ISP and they claim no issues on their end, only a weak connection that seems to be due to a hardware issue on our end. The previous coaxial cable seemed to be in fine condition, but I swapped it with a brand new one anyway to no avail.

Attached is a picture of the front-end LED indicators.

FURRYe38 · Answer

What Firmware version is currently loaded?Please post a copy and paste of the modems connection status and event log page.https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-routerhttps://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-router
&nbsp;
What Wi-Fi channels are you using?&nbsp;Any Wi-Fi Neighbors near by? If so, how many?

cakekey · Answer

Connection Status:Frequency start Value This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.Starting Frequency&nbsp;&nbsp; 0&nbsp;Startup Procedure Procedure Status Comment Acquire Downstream Channel603000000 HzLockedConnectivity StateOKOperationalBoot StateOKOperationalSecurityDisabledDisabledIP Provisioning ModeHonor MDDhonorMdd(4)&nbsp;Downstream Bonded ChannelsChannel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables 1LockedQAM25617603000000 Hz2.7 dBmV37.4 dB302LockedQAM2561507000000 Hz1 dBmV36.6 dB134693LockedQAM2562513000000 Hz1.2 dBmV36.4 dB2324264LockedQAM2564525000000 Hz1.4 dBmV36.9 dB1581465LockedQAM2565531000000 Hz1.8 dBmV37.1 dB133876LockedQAM2566537000000 Hz1.7 dBmV37.2 dB83907LockedQAM2567543000000 Hz2.2 dBmV37.3 dB4018LockedQAM2568549000000 Hz2.1 dBmV36.3 dB809LockedQAM2569555000000 Hz2.1 dBmV35.8 dB5010LockedQAM25610561000000 Hz2.2 dBmV36.8 dB1011LockedQAM25611567000000 Hz2.1 dBmV37.3 dB0012LockedQAM25612573000000 Hz2.3 dBmV37.3 dB0013LockedQAM25613579000000 Hz2.1 dBmV37.3 dB0014LockedQAM25614585000000 Hz2.3 dBmV37.3 dB55215LockedQAM25615591000000 Hz2.5 dBmV37.3 dB36016LockedQAM25618609000000 Hz2.6 dBmV37.3 dB11017LockedQAM25621627000000 Hz1.8 dBmV37.1 dB0018LockedQAM25624645000000 Hz1.3 dBmV36.9 dB0019LockedQAM25625651000000 Hz1.5 dBmV37.1 dB0020LockedQAM25627663000000 Hz1.3 dBmV36.8 dB0021LockedQAM25628669000000 Hz1.3 dBmV36.7 dB0022LockedQAM25630681000000 Hz1.2 dBmV36.6 dB0023LockedQAM25631687000000 Hz1.6 dBmV36.6 dB0024LockedQAM25632693000000 Hz1.3 dBmV36.5 dB00&nbsp;Upstream Bonded ChannelsChannel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power 1LockedATDMA85120 Ksym/sec37400000 Hz51.5 dBmV2Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV3Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV4Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV5Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV6Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV7Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV8Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV

cakekey · Answer

Event Log:2023-5-31, 16:33:18Error (4)DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 15:26:28Warning (5)DHCP WARNING - Non-critical field invalid in response ;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 15:26:24Notice (6)Honoring MDD; IP provisioning mode = IPv42023-5-31, 15:26:13Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 15:25:40Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 15:25:40Warning (5)MDD message timeout;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;1970-1-1, 00:00:59Warning (5)DHCP WARNING - Non-critical field invalid in response ;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.0;CM-VER=3.0;1970-1-1, 00:00:57Notice (6)Honoring MDD; IP provisioning mode = IPv41970-1-1, 00:00:49Critical (3)No Ranging Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.0;CM-VER=3.0;1970-1-1, 00:00:41Notice (6)WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT1970-1-1, 00:00:41Notice (6)WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INIT1970-1-1, 00:00:39Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;2023-5-31, 14:28:19Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 13:32:50Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 13:32:18Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 11:32:00Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 11:31:28Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 09:21:51Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 09:21:19Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 07:20:33Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 05:27:17Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 05:26:45Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 03:20:43Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 03:20:10Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-31, 01:22:51Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 23:29:48Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 23:29:15Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 21:34:32Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 21:33:59Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 19:40:52Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 19:40:20Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 17:46:08Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 17:45:35Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 15:42:35Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 15:42:03Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 13:35:46Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 13:35:13Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 11:28:42Critical (3)Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 11:28:10Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;2023-5-30, 09:36:51Critical (3)No Ranging Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.0;CM-VER=3.0;

michaelkenward · Answer

cakekey&nbsp;wrote:
I've contacted my ISP and they claim no issues on their end, only a weak connection that seems to be due to a hardware issue on our end.

What does that mean? Did they provide any details?
&nbsp;
The connection at your end depends upon the quality of the signal that gets to you. They control that, not you.
&nbsp;
While many questions about routers are generic and could be answered anywhere, some things need specialist knowledge.You might get more help, and find earlier questions and answers specific to your device, in the appropriate section for your hardware. That's probably here: Cable Modems &amp; RoutersI will ask the Netgear moderator to move your message.In the meantime you could visit the support pages:Support | NETGEARFeed in your model number and check the documentation for your hardware. Look at the label on the device for the model number.Check for various troubleshooting tips.You may have done this already. I can't tell from your message. I mention it because Netgear stopped supplying printed manuals and CD versions some years ago and people sometimes miss the downloads.

cakekey · Answer

Firmware is V1.03.01I have devices across both 2.4GHz and 5GHz.I live in a suburb, and thus have other property's wifi networks within range. On average, there are over a dozen.

Forum Discussion

Nighthawk AC1900 (C7000v2) Disconnects Frequently

9 Replies

Procedure	Status	Comment
Acquire Downstream Channel	603000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Disabled	Disabled
IP Provisioning Mode	Honor MDD	honorMdd(4)

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	Uncorrectables
1	Locked	QAM256	17	603000000 Hz	2.7 dBmV	37.4 dB	3	0
2	Locked	QAM256	1	507000000 Hz	1 dBmV	36.6 dB	134	69
3	Locked	QAM256	2	513000000 Hz	1.2 dBmV	36.4 dB	232	426
4	Locked	QAM256	4	525000000 Hz	1.4 dBmV	36.9 dB	158	146
5	Locked	QAM256	5	531000000 Hz	1.8 dBmV	37.1 dB	133	87
6	Locked	QAM256	6	537000000 Hz	1.7 dBmV	37.2 dB	83	90
7	Locked	QAM256	7	543000000 Hz	2.2 dBmV	37.3 dB	40	1
8	Locked	QAM256	8	549000000 Hz	2.1 dBmV	36.3 dB	8	0
9	Locked	QAM256	9	555000000 Hz	2.1 dBmV	35.8 dB	5	0
10	Locked	QAM256	10	561000000 Hz	2.2 dBmV	36.8 dB	1	0
11	Locked	QAM256	11	567000000 Hz	2.1 dBmV	37.3 dB	0	0
12	Locked	QAM256	12	573000000 Hz	2.3 dBmV	37.3 dB	0	0
13	Locked	QAM256	13	579000000 Hz	2.1 dBmV	37.3 dB	0	0
14	Locked	QAM256	14	585000000 Hz	2.3 dBmV	37.3 dB	55	2
15	Locked	QAM256	15	591000000 Hz	2.5 dBmV	37.3 dB	36	0
16	Locked	QAM256	18	609000000 Hz	2.6 dBmV	37.3 dB	11	0
17	Locked	QAM256	21	627000000 Hz	1.8 dBmV	37.1 dB	0	0
18	Locked	QAM256	24	645000000 Hz	1.3 dBmV	36.9 dB	0	0
19	Locked	QAM256	25	651000000 Hz	1.5 dBmV	37.1 dB	0	0
20	Locked	QAM256	27	663000000 Hz	1.3 dBmV	36.8 dB	0	0
21	Locked	QAM256	28	669000000 Hz	1.3 dBmV	36.7 dB	0	0
22	Locked	QAM256	30	681000000 Hz	1.2 dBmV	36.6 dB	0	0
23	Locked	QAM256	31	687000000 Hz	1.6 dBmV	36.6 dB	0	0
24	Locked	QAM256	32	693000000 Hz	1.3 dBmV	36.5 dB	0	0

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	8	5120 Ksym/sec	37400000 Hz	51.5 dBmV
2	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
3	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
4	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
5	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
6	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
7	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV
8	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0.0 dBmV

2023-5-31, 16:33:18	Error (4)	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 15:26:28	Warning (5)	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 15:26:24	Notice (6)	Honoring MDD; IP provisioning mode = IPv4
2023-5-31, 15:26:13	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 15:25:40	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 15:25:40	Warning (5)	MDD message timeout;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
1970-1-1, 00:00:59	Warning (5)	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:00:57	Notice (6)	Honoring MDD; IP provisioning mode = IPv4
1970-1-1, 00:00:49	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:00:41	Notice (6)	WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:41	Notice (6)	WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:39	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2023-5-31, 14:28:19	Critical (3)	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 13:32:50	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 13:32:18	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 11:32:00	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 11:31:28	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 09:21:51	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 09:21:19	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 07:20:33	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 05:27:17	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 05:26:45	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 03:20:43	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 03:20:10	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-31, 01:22:51	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 23:29:48	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 23:29:15	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 21:34:32	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 21:33:59	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 19:40:52	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 19:40:20	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 17:46:08	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 17:45:35	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 15:42:35	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 15:42:03	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 13:35:46	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 13:35:13	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 11:28:42	Critical (3)	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 11:28:10	Critical (3)	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.1;CM-VER=3.0;
2023-5-30, 09:36:51	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=80:cc:9c:0b:93:90;CMTS-MAC=00:01:5c:6b:b6:5c;CM-QOS=1.0;CM-VER=3.0;